NAME

       XkbAddGeomSection - Add one section to an existing keyboard geometry

SYNOPSIS

       XkbSectionPtr   XkbAddGeomSection  (XkbGeometryPtr  geom,  Atom  name,  int  sz_rows,  int
              sz_doodads, int sz_overlays);

ARGUMENTS

       - geom geometry to be updated

       - name name of the new section

       - sz_rows
              number of rows to reserve in the section

       - sz_doodads
              number of doodads to reserve in the section

       - sz_overlays
              number of overlays to reserve in the section

DESCRIPTION

       Xkb provides functions to add a single new element to the top-level keyboard geometry.  In
       each  case  the  num_  *  fields of the corresponding structure is incremented by 1. These
       functions do not change sz_* unless there is no more room in  the  array.  Some  of  these
       functions  fill  in  the  values  of the element's structure from the arguments. For other
       functions, you must explicitly write code to fill the structure's elements.

       The top-level geometry description includes a list of  geometry  properties.   A  geometry
       property  associates  an  arbitrary  string  with an equally arbitrary name. Programs that
       display images of keyboards can use  geometry  properties  as  hints,  but  they  are  not
       interpreted by Xkb. No other geometry structures refer to geometry properties.

       A  keyboard geometry contains an arbitrary number of sections.  XkbAddGeomSection adds one
       section to an existing keyboard geometry geom.  The new section  contains  space  for  the
       number  of  rows, doodads, and overlays specified by sz_rows, sz_doodads, and sz_overlays.
       The new section is allocated and zeroed and given  the  name  specified  by  name.   If  a
       section  with  name name already exists in the geometry, a pointer to the existing section
       is returned.  XkbAddGeomSection returns NULL if any of the parameters is empty  or  if  it
       was  not able to allocate space for the section. To allocate space for an arbitrary number
       of sections to a geometry, use XkbAllocGeomSections.

STRUCTURES

       typedef struct _XkbSection {
           Atom                    name;        /∗ section name */
           unsigned char           priority;    /∗ drawing priority, 0=>highest, 255=>lowest */
           short                   top;         /∗ top coordinate of section origin */
           short                   left;        /∗ left coordinate of row origin */
           unsigned short          width;       /∗ section width, in mm/10 */
           unsigned short          height;      /∗ section height, in mm/10 */
           short                   angle;       /∗ angle of section rotation, counterclockwise */
           unsigned short          num_rows;    /∗ number of rows in the rows array */
           unsigned short          num_doodads; /∗ number of doodads in the doodads array */
           unsigned short          num_overlays; /∗ number of overlays in the overlays array */
           unsigned short          sz_rows;      /∗ size of the rows array */
           unsigned short          sz_doodads;   /∗ size of the doodads array */
           unsigned short          sz_overlays;  /∗ size of the overlays array */
           XkbRowPtr               rows;         /∗ section rows array */
           XkbDoodadPtr            doodads;      /∗ section doodads array */
           XkbBoundsRec            bounds;       /∗ bounding box for the section, before rotation*/
           XkbOverlayPtr           overlays;     /∗ section overlays array */
       } XkbSectionRec, *XkbSectionPtr;

       top and left are the origin of the section, relative to the origin  of  the  keyboard,  in
       mm/10. angle is in 1/10 degrees.

SEE ALSO

       XkbAllocGeomSections(3)